Personally, I hate the web of today and if I had the power I would get rid of it and go back to 2000's internet which removes those stupid ads and other things which bloat the internet.
You're wasting precious time and energy agonising over this issue.
Most people - ie non-techy people - don't see the web as bloated or oppressed - it never enters their heads.
When they can no longer navigate the web on their respective devices they simply think it's time to upgrade - enforced and consolidated by the 'expert' advice they receive from friends and the guys in the tech store.
This doesn't make them dumb or compliant, it's just not a priority for them, in the same way it's not a priority to me to learn automotive engineering - I just take the car to the garage.
The planned obsolescence/upgrade cycle is just one poisonous component of our materially obsessed society - the only meaningfully tactic to resist this is help form alternatives and promote those alternatives to like minded people - which is vaguely the thrust of Web 1.1
But it is what is is - a niche interest for a tiny bunch of hobbyists, tinkerers and SM self promoters - at best it will grow and interface with the self-sustaining/green crowd but that's a stretch...
You can either contribute - like you said you were going to a year ago - or leave the internet to newer machines and use your old Macs for period correct pursuits offline.